Connecting structure of mute drainage pipe fitting

Abstract

The utility model relates to the technical field of pipeline assemblies, and discloses a connecting structure of a mute drainage pipe fitting, the connecting structure comprises a first mute pipe body and a second mute pipe body, the outer surface of the first mute pipe body is fixedly connected with a matching sleeve, the outer surface of the second mute pipe body is fixedly connected with an insertion piece, the inner wall of the matching sleeve is provided with an internal thread, and the inner wall of the insertion piece is provided with an external thread. The outer surface of the plug-in is provided with external threads, and the plug-in is in threaded connection with the matching sleeve. According to the connecting structure of the mute drainage pipe fitting, through the conical arrangement of the left end of the inserting piece, the clamping column can be extruded in the process of rotating to enter the matching sleeve, so that the purpose of limiting the inserting piece by the clamping column after the inserting piece extrudes the sealing gasket is achieved, the effect of avoiding loosening of the inserting piece is achieved, the overall sealing performance is effectively improved, and the service life of the inserting piece is prolonged. When liquid flows to the left side from the right end of the second mute pipe body, the anti-backflow plate cannot be opened, the anti-backflow purpose is achieved, meanwhile, when no liquid flows, the anti-backflow plate is in a closed state, smell spreading can be effectively avoided, and the comfort level of residents is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline components, and in particular to a connection structure of a silent drainage pipe fitting. Background Art

[0002] The existing patent (Announcement No.: CN201764152U) discloses a connection structure of a silent drainage pipe fitting, including a pipe fitting, a pipe material and a locking device. The inner diameter of the pipe fitting matches the outer diameter of the pipe material. The locking device includes a locking cover, a fastening ring and a sealing ring. The fastening ring and the sealing ring are sleeved on the pipe material. The sealing ring is arranged between the fastening ring and the pipe fitting. The fastening ring is provided with a block that matches the inner wall of the locking cover. The pipe fitting has external threads at both ends, and the locking cover has internal threads that match the external threads. The connection structure of the silent drainage pipe fitting of the utility model is easy to install, has high connection strength, is environmentally friendly and has no glue pollution, is easy to disassemble, and has good sealing performance.

[0003] During the use of the above-mentioned pipe connection structure, due to the vibration caused by the continuous delivery of water in the pipe, the threaded connection of the pipe is prone to loosening after long-term use, resulting in reduced sealing and causing water leakage. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides a connection structure for silent drainage pipe fittings, which has the advantages of excellent sealing of the pipe fitting connection structure and solves the problem of poor sealing.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a connection structure for a silent drainage pipe fitting, comprising a first silent pipe body and a second silent pipe body, the outer surface of the first silent pipe body is fixedly connected to a matching sleeve, the outer surface of the second silent pipe body is fixedly connected to a plug-in, the inner wall of the matching sleeve is provided with an internal thread, the outer surface of the plug-in is provided with an external thread, the plug-in is threadedly connected to the matching sleeve, a sealing gasket is inserted into the interior of the matching sleeve, a plurality of clamping columns are inserted into the outer surface of the matching sleeve, the inner wall of the first silent pipe body is provided with an anti-backflow ring, the right side surface of the anti-backflow ring is fixedly connected to two reset plates, a reset shaft is rotatably connected between the two reset plates through a bearing, and the outer surface of the reset shaft is fixedly connected to the anti-backflow plate.

[0006] Through the above scheme, the conical setting at the left end of the plug-in can squeeze the card column during the process of rotating into the matching sleeve, thereby achieving the purpose of limiting the plug-in by the card column when the plug-in squeezes the sealing gasket, thereby achieving the effect of preventing the plug-in from loosening, and effectively improving the overall sealing. When the liquid flows from the left end of the first silent tube body to the second silent tube body, the anti-backflow plate can be opened to the right, and when the liquid flows from the right end of the second silent tube body to the left side, the anti-backflow plate cannot be opened, thereby achieving the purpose of preventing backflow. At the same time, when there is no liquid flowing, the anti-backflow plate is in a closed state, which can effectively prevent the spread of odor and improve the comfort of residents.

[0007] Furthermore, the left end of the plug-in is configured to be conical, and the left end of the plug-in is in close contact with the sealing gasket.

[0008] Through the above solution, the left end of the plug-in is set to be conical, which can make the plug-in squeeze the clamping column to make way when entering the matching sleeve, so as to achieve the purpose of rapid installation and improve the convenience of users.

[0009] Furthermore, one end of each of the clamping posts close to the first silent tube body is rounded.

[0010] According to the above solution, by providing a rounded corner at one end of the clamping column, the resistance when the clamping column contacts the plug-in can be reduced, which is convenient for users to connect and assemble.

[0011] Furthermore, one end of each of the clamping columns away from the first silent tube body is fixedly connected to a spring, and the other end of each spring is fixedly connected to the first matching sleeve.

[0012] Through the above solution and the setting of the spring, the purpose of automatic resetting of the clamping column can be achieved, thereby achieving the effect of quick installation.

[0013] Furthermore, the other ends of the two reset plates are fixedly connected to torsion springs, and the other ends of the two torsion springs are fixedly connected to the reset shaft.

[0014] Through the above scheme and the provision of the torsion spring, the purpose of automatic resetting of the anti-backflow plate can be achieved.

[0015] Furthermore, the diameter of the backflow prevention plate is larger than the inner hole diameter of the backflow prevention ring, and one side of the backflow prevention plate is in close contact with the backflow prevention ring.

[0016] Through the above scheme, the provision of the anti-backflow plate can achieve the purpose of preventing backflow of the liquid transported by the first silent tube body and the second silent tube body.

[0017] Furthermore, the outer surface of the plug-in is knurled, and each clamping column is in contact with the plug-in.

[0018] Through the above solution, the outer surface of the plug-in is knurled, which can prevent the user from slipping during the rotation and plugging process, thereby improving the convenience of the user.

[0019] Furthermore, the sealing gasket is in a compressed state and is made of rubber material.

[0020] Through the above solution, the sealing gasket is set to a compressed state, which can improve the sealing performance between the plug-in unit and the matching sleeve.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] The connection structure of this silent drainage pipe fitting can squeeze the clamping column during the process of rotating into the matching sleeve through the conical setting of the left end of the plug-in, thereby achieving the purpose of limiting the plug-in by the clamping column when the plug-in finishes squeezing the sealing gasket, thereby achieving the effect of preventing the plug-in from loosening and effectively improving the overall sealing. When liquid flows from the left end of the first silent pipe body to the second silent pipe body, the anti-backflow plate can be opened to the right, and when liquid flows from the right end of the second silent pipe body to the left side, the anti-backflow plate cannot be opened, thereby achieving the purpose of preventing backflow. At the same time, when there is no liquid flowing, the anti-backflow plate is in a closed state, which can effectively prevent the spread of odor and improve the comfort of residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the front view of the first silent tube body of the present application;

[0024] Figure 2 For this application Figure 1 A schematic diagram of the structure enlargement at point A;

[0025] Figure 3 This is a schematic diagram of the structure of the anti-backflow ring and the anti-backflow plate of this application;

[0026] Figure 4 For this application Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 Front view of the insert and mating sleeve for this application.

[0028] In the figure:

[0029] 1. First silent tube body; 2. Second silent tube body; 3. Matching sleeve; 4. Plug-in; 5. Internal thread; 6. External thread; 7. Sealing gasket; 8. Clamping column; 9. Anti-backflow ring; 10. Reset plate; 11. Reset shaft; 12. Anti-backflow plate; 13. Spring; 14. Torsion spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 5 , a connection structure of a silent drainage pipe fitting in this embodiment includes a first silent pipe body 1 and a second silent pipe body 2. The outer surface of the first silent pipe body 1 is fixedly connected with a matching sleeve 3, and the outer surface of the second silent pipe body 2 is fixedly connected with a plug-in 4. The outer surface of the plug-in 4 is knurled, and each clamping column 8 is in contact with the plug-in 4. The knurling process on the outer surface of the plug-in 4 can avoid the user's hand slipping during the rotation and plugging process, thereby improving the convenience of the user. The left end of the plug-in 4 is set to a cone, and the left end of the plug-in 4 is in close contact with the sealing gasket 7. The left end of the plug-in 4 is set to a cone, so that the plug-in 4 can squeeze the clamping column 8 to make way in the process of entering the matching sleeve 3, so as to achieve the purpose of quick installation and improve the convenience of the user. The inner wall of the matching sleeve 3 is provided with an internal thread 5, and the plug-in 4 is provided with an external thread 6, the plug-in 4 is threadedly connected to the matching sleeve 3, a sealing gasket 7 is inserted inside the matching sleeve 3, the sealing gasket 7 is in a compressed state, and the sealing gasket 7 is set to a rubber material. By setting the sealing gasket 7 to a compressed state, the sealing performance of the plug-in 4 and the matching sleeve 3 can be improved, and a plurality of clamping columns 8 are inserted on the outer surface of the matching sleeve 3, and each clamping column 8 is rounded at one end close to the first silent tube body 1. By rounding one end of the clamping column 8, the resistance when the clamping column 8 contacts the plug-in 4 can be reduced, which is convenient for users to dock and assemble, and each clamping column 8 is fixedly connected to a spring 13 at one end away from the first silent tube body 1, and the other end of each spring 13 is fixedly connected to the first matching sleeve 3. Through the setting of the spring 13, the purpose of automatic resetting of the clamping column 8 can be achieved, thereby achieving the effect of quick installation.

[0032] See also Figure 2 , Figure 3An anti-backflow ring 9 is provided on the inner wall of the first silent tube body 1, and two reset plates 10 are fixedly connected to the right side of the anti-backflow ring 9. A reset shaft 11 is rotatably connected between the two reset plates 10 through a bearing, and an anti-backflow plate 12 is fixedly connected to the outer surface of the reset shaft 11. The other ends of the two reset plates 10 are fixedly connected to torsion springs 14, and the other ends of the two torsion springs 14 are fixedly connected to the reset shaft 11. Through the setting of the torsion springs 14, the purpose of automatic resetting of the anti-backflow plate 12 can be achieved. The diameter of the anti-backflow plate 12 is larger than the inner hole diameter of the anti-backflow ring 9, and one side of the anti-backflow plate 12 is in close contact with the anti-backflow ring 9. Through the setting of the anti-backflow plate 12, the purpose of anti-backflow of liquid conveying by the first silent tube body 1 and the second silent tube body 2 can be achieved.

[0033] The connection structure of the silent drainage pipe fitting in this embodiment, through the conical setting of the left end of the plug 4, can squeeze the clamping column 8 during the process of rotating into the matching sleeve 3, so that when the plug 4 completes squeezing the sealing gasket 7, the clamping column 8 limits the plug 4, thereby achieving the effect of preventing the plug 4 from loosening and effectively improving the overall sealing. When the liquid flows from the left end of the first silent pipe body 1 to the second silent pipe body 2, the anti-backflow plate 12 can be opened to the right, and when the liquid flows from the right end of the second silent pipe body 2 to the left, the anti-backflow plate 12 cannot be opened, thereby achieving the purpose of preventing backflow. At the same time, when there is no liquid flowing, the anti-backflow plate 12 is in a closed state, which can effectively prevent the spread of odor and improve the comfort of residents.

[0034] It should be noted that the sealing gasket 7 can be taken out from the matching sleeve 3 for replacement.

[0035] The working principle of the above embodiment is as follows: when in use, the external thread 6 of the plug-in 4 on the outer surface of the second silent tube body 2 is connected with the internal thread 5 of the matching sleeve 3 by rotational thread connection, so that the plug-in 4 enters the interior of the matching sleeve 3. During the process of the plug-in 4 entering, since the left end of the plug-in 4 is set to be tapered, the clamping column 8 can be squeezed to move outward during the movement. When the left side of the plug-in 4 contacts the sealing gasket 7, the sealing gasket 7 can be compressed to make it in close contact with the plug-in 4. At this time, the clamping column 8 is out of contact with the tapered surface of the left end of the plug-in 4, and the clamping column 8 is in the spring 1 3 is reset, so that the card column 8 contacts the conical side wall of the left end of the plug-in 4, completing the limit of the plug-in 4, avoiding the vibration caused by the conveying liquid to loosen the thread, and improving its sealing. When the liquid flows from the left side of the first silent tube body 1, the left side of the anti-backflow plate 12 is under pressure and can be turned to the right side to ensure the normal passage of the liquid. When the liquid flows back, the anti-backflow plate 12 cannot be turned from the right side to the left side, thereby achieving the effect of preventing the liquid from backflowing and backflowing, and at the same time can block the odor on the right end, thereby improving the comfort of the residents.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a silent drainage pipe, comprising a first silent pipe body (1) and a second silent pipe body (2), characterized in that: The outer surface of the first silent tube body (1) is fixedly connected to a matching sleeve (3), the outer surface of the second silent tube body (2) is fixedly connected to an insert (4), the inner wall of the matching sleeve (3) is provided with an internal thread (5), the outer surface of the insert (4) is provided with an external thread (6), the insert (4) and the matching sleeve (3) are threadedly connected, a sealing gasket (7) is inserted into the interior of the matching sleeve (3), and a plurality of clamping columns (8) are inserted into the outer surface of the matching sleeve (3); The inner wall of the first silent tube body (1) is provided with an anti-backflow ring (9), the right side surface of the anti-backflow ring (9) is fixedly connected to two reset plates (10), a reset shaft (11) is rotatably connected between the two reset plates (10) via a bearing, and the outer surface of the reset shaft (11) is fixedly connected to the anti-backflow plate (12).

2. The connection structure of a silent drainage pipe fitting according to claim 1, characterized in that: The left end of the plug-in (4) is configured to be conical, and the left end of the plug-in (4) is in close contact with the sealing gasket (7).

3. The connection structure of a silent drainage pipe fitting according to claim 1, characterized in that: One end of each of the clamping columns (8) close to the first silent tube body (1) is rounded.

4. The connection structure of a silent drainage pipe fitting according to claim 1, characterized in that: One end of each of the clamping columns (8) away from the first silent tube body (1) is fixedly connected to a spring (13), and the other end of each spring (13) is fixedly connected to the first matching sleeve (3).

5. The connection structure of a silent drainage pipe fitting according to claim 1, characterized in that: The other ends of the two reset plates (10) are fixedly connected to torsion springs (14), and the other ends of the two torsion springs (14) are fixedly connected to the reset shaft (11).

6. The connection structure of a silent drainage pipe according to claim 1, characterized in that: The diameter of the backflow prevention plate (12) is greater than the inner hole diameter of the backflow prevention ring (9), and one side of the backflow prevention plate (12) is in close contact with the backflow prevention ring (9).

7. The connection structure of a silent drainage pipe according to claim 1, characterized in that: The outer surface of the plug-in (4) is knurled, and each clamping column (8) is in contact with the plug-in (4).

8. The connection structure of a silent drainage pipe fitting according to claim 1, characterized in that: The sealing pad (7) is in a compressed state, and the sealing pad (7) is made of rubber material.

Images